package com.hitqz.robot.netty.decoder;

import com.hitqz.robot.api.dispatch.model.MessageDto;
import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.ByteToMessageDecoder;
import lombok.extern.slf4j.Slf4j;

import java.util.List;

/**
 * 机器人控制信息的解码器
 * @author xupkun
 * @date 2023/8/4
 */
@Slf4j
public class Robot2ServerDecoder extends ByteToMessageDecoder {

    @Override
    protected void decode(ChannelHandlerContext channelHandlerContext, ByteBuf byteBuf, List<Object> list) throws Exception {
        try {
            short version = byteBuf.readShort();
            byte[] clientIdData = new byte[32];
            byteBuf.readBytes(clientIdData);
            String clientId = new String(clientIdData).trim();
            int sn = byteBuf.readInt();
            short cmd = byteBuf.readShort();
            int dataLength = byteBuf.readInt();
            byte[] data = new byte[dataLength];
            byteBuf.readBytes(data);
            MessageDto msg = new MessageDto();
            msg.setClientId(clientId);
            msg.setCmd(cmd);
            msg.setDataLength(dataLength);
            msg.setData(data);
            msg.setHeader(new byte[]{
                    (byte) 0xEB, (byte) 0x90
            });
            msg.setSn(sn);
            list.add(msg);
        }catch (Exception e) {
            byteBuf.readBytes(byteBuf.readableBytes());
            log.info("Failed to read" + e.getMessage());
        }
    }


}



